body,
html {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
body {
    background-color: #f5f5f5;
    display: flex;
    justify-content: center;
    align-items: center;
    height: fit-content;
}
.image-container {
    max-width: 940px;
    padding: 20px;
    box-sizing: border-box;
}
.image-container img {
    width: 100%;
    max-width: 100%;
    height: auto;
    display: block;
    border: 1px solid #ddd;
    border-radius: 5px;
}